diff --git a/knockout/knockout.d.ts b/knockout/knockout.d.ts
index 63f993894..7759f4190 100644
--- a/knockout/knockout.d.ts
+++ b/knockout/knockout.d.ts
@@ -235,36 +235,22 @@ interface KnockoutUtils {
 
     arrayForEach<T>(array: T[], action: (item: T) => void): void;
 
-    arrayForEach(array: any[], action: (any) => void ): void;
-
     arrayIndexOf(array: any[], item: any): number;
 
     arrayFirst<T>(array: T[], predicate: (item: T) => boolean, predicateOwner?: any): T;
 
-    arrayFirst(array: any[], predicate: (item) => boolean, predicateOwner?: any): any;
-
     arrayRemoveItem(array: any[], itemToRemove: any): void;
 
     arrayGetDistinctValues<T>(array: T[]): T[];
 
-    arrayGetDistinctValues(array: any[]): any[];
-
     arrayMap<T, U>(array: T[], mapping: (item: T) => U): U[];
 
-    arrayMap(array: any[], mapping: (item) => any): any[];
-
     arrayFilter<T>(array: T[], predicate: (item: T) => boolean): T[];
 
-    arrayFilter(array: any[], predicate: (item) => boolean): any[];
-
     arrayPushAll<T>(array: T[], valuesToPush: T[]): T[];
 
-    arrayPushAll(array: any[], valuesToPush: any[]): any[];
-
     arrayPushAll<T>(array: KnockoutObservableArray<T>, valuesToPush: T[]): T[];
 
-    arrayPushAll(array: KnockoutObservableArray<any>, valuesToPush: any[]): any[];
-
     extend(target, source);
 
     emptyDomNode(domNode): void;